What is the period of a set of waves?
Send your answers to george@bwsailing.com. A winner will be selected randomly from the correct answers.
Many thnaks to all readers who sent in answers to last week’s Mindbender. The winner this weeks is Mike Alofsin, Atlantic Highlands, NJ who emailed: “A moon is in gibbous phase when the light of the sun covers more than half of the whole.”
